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Mon, 14 Sep 2020 16:52:31 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Mon, 14 Sep 2020 16:52:23 +0800 From: Chuan Zheng To: , , , Subject: [PATCH v8 12/12] migration/dirtyrate: Add trace_calls to make it easier to debug Date: Mon, 14 Sep 2020 17:03:05 +0800 Message-ID: <1600074185-91624-13-git-send-email-zhengchuan@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1600074185-91624-1-git-send-email-zhengchuan@huawei.com> References: <1600074185-91624-1-git-send-email-zhengchuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.32; envelope-from=zhengchuan@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/14 04:52:27 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhengchuan@huawei.com, zhang.zhanghailiang@huawei.com, yuxiating@huawei.com, liq3ea@gmail.com, qemu-devel@nongnu.org, xiexiangyou@huawei.com, alex.chen@huawei.com, jinyan12@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add trace_calls to make it easier to debug Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert Reviewed-by: David Edmondson --- migration/dirtyrate.c | 9 +++++++++ migration/trace-events | 8 ++++++++ 2 files changed, 17 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 917edef..f808037 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -22,6 +22,7 @@ #include "qapi/qapi-commands-migration.h" #include "migration.h" #include "ram.h" +#include "trace.h" #include "dirtyrate.h" static int CalculatingState = DIRTY_RATE_STATUS_UNSTARTED; @@ -54,6 +55,7 @@ static bool is_sample_period_valid(int64_t sec) static int dirtyrate_set_state(int *state, int old_state, int new_state) { assert(new_state < DIRTY_RATE_STATUS__MAX); + trace_dirtyrate_set_state(DirtyRateStatus_str(new_state)); if (atomic_cmpxchg(state, old_state, new_state) == old_state) { return 0; } else { @@ -76,6 +78,8 @@ static struct DirtyRateInfo *query_dirty_rate_info(void) info->start_time = DirtyStat.start_time; info->calc_time = DirtyStat.calc_time; + trace_query_dirty_rate_info(DirtyRateStatus_str(CalculatingState)); + return info; } @@ -123,6 +127,7 @@ static uint32_t get_ramblock_vfn_hash(struct RamblockDirtyInfo *info, crc = crc32(0, (info->ramblock_addr + vfn * TARGET_PAGE_SIZE), TARGET_PAGE_SIZE); + trace_get_ramblock_vfn_hash(info->idstr, vfn, crc); return crc; } @@ -201,6 +206,8 @@ static bool skip_sample_ramblock(RAMBlock *block) * Sample only blocks larger than MIN_RAMBLOCK_SIZE. */ if (qemu_ram_get_used_length(block) < (MIN_RAMBLOCK_SIZE << 10)) { + trace_skip_sample_ramblock(block->idstr, + qemu_ram_get_used_length(block)); return true; } @@ -262,6 +269,7 @@ static void calc_page_dirty_rate(struct RamblockDirtyInfo *info) for (i = 0; i < info->sample_pages_count; i++) { crc = get_ramblock_vfn_hash(info, info->sample_page_vfn[i]); if (crc != info->hash_result[i]) { + trace_calc_page_dirty_rate(info->idstr, crc, info->hash_result[i]); info->sample_dirty_count++; } } @@ -287,6 +295,7 @@ find_page_matched(RAMBlock *block, int count, if (infos[i].ramblock_addr != qemu_ram_get_host_addr(block) || infos[i].ramblock_pages != (qemu_ram_get_used_length(block) >> TARGET_PAGE_BITS)) { + trace_find_page_matched(block->idstr); return NULL; } diff --git a/migration/trace-events b/migration/trace-events index 4ab0a50..8c2b58f 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -312,3 +312,11 @@ dirty_bitmap_load_bits_zeroes(void) "" dirty_bitmap_load_header(uint32_t flags) "flags 0x%x" dirty_bitmap_load_enter(void) "" dirty_bitmap_load_success(void) "" + +# dirtyrate.c +dirtyrate_set_state(const char *new_state) "new state %s" +query_dirty_rate_info(const char *new_state) "current state %s" +get_ramblock_vfn_hash(const char *idstr, uint64_t vfn, uint32_t crc) "ramblock name: %s, vfn: %"PRIu64 ", crc: %" PRIu32 +calc_page_dirty_rate(const char *idstr, uint32_t new_crc, uint32_t old_crc) "ramblock name: %s, new crc: %" PRIu32 ", old crc: %" PRIu32 +skip_sample_ramblock(const char *idstr, uint64_t ramblock_size) "ramblock name: %s, ramblock size: %" PRIu64 +find_page_matched(const char *idstr) "ramblock %s addr or size changed"